Load macros from `extern crate`s during expansion.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/libsyntax/test.rs b/src/libsyntax/test.rs
index 6fbbed2ee98..2ac4aac65de 100644
--- a/src/libsyntax/test.rs
+++ b/src/libsyntax/test.rs
@@ -25,7 +25,7 @@ use codemap;
 use errors;
 use config;
 use entry::{self, EntryPointType};
-use ext::base::ExtCtxt;
+use ext::base::{ExtCtxt, DummyMacroLoader};
 use ext::build::AstBuilder;
 use ext::expand::ExpansionConfig;
 use fold::Folder;
@@ -271,12 +271,14 @@ fn generate_test_harness(sess: &ParseSess,
     let krate = cleaner.fold_crate(krate);
 
     let mut feature_gated_cfgs = vec![];
+    let mut loader = DummyMacroLoader;
     let mut cx: TestCtxt = TestCtxt {
         sess: sess,
         span_diagnostic: sd,
         ext_cx: ExtCtxt::new(sess, vec![],
                              ExpansionConfig::default("test".to_string()),
-                             &mut feature_gated_cfgs),
+                             &mut feature_gated_cfgs,
+                             &mut loader),
         path: Vec::new(),
         testfns: Vec::new(),
         reexport_test_harness_main: reexport_test_harness_main,